User's Manual Part 2

Host Computer Commands
RVP8 User’s Manual
May 2003
6–16
The overall range is from 0.01m/sec to 655.34m/sec in one centimeter/second
steps as follows:
0 : Indicates width data is not available at this range
1 : 0.01 m/sec
65534 : 655.34 m/sec
65535 : Reserved Code
Z Selects clutter corrected reflectivity data.
8-Bit deciBel Format — The level in decibels is computed from the unsigned
byte N as:
dBZ = (N–64)/2.
The overall range is therefore from –31.5 dBZ to +95.5 dBZ in half-dB steps as
follows:
0 : Indicates no reflectivity data available at this range
1 : –31.5 dBZ
64 : 0.0 dBZ
128 : 32.0 dBZ
255 : +95.5 dBZ
16-Bit deciBel Format — The level in decibels is computed from the unsigned
word N as:
dBZ = (N–32768) / 100
The overall range is from –327.67dB to +327.66dB in 1/100dB steps as follows:
0 : Indicates no reflectivity data available at this range
1 : –327.67 dBZ
32768 : 0.00 dBZ
65534 : +327.66 dBZ
65535 : Reserved Code
T Selects total reflectivity. Same 8-bit and 16-bit coding formats as for clutter cor-
rected reflectivity above.
ZDR Selects differential reflectivity data.
8-Bit ZDR Format — The level in decibels is computed from the unsigned byte
N as:
dB = (N–128) / 16
The overall range is from –7.935dB to +7.935dB in one-sixteenth dB steps as fol-
lows:
0 : Indicates no reflectivity data available at this range
1 : –7.9375 dB
128 : 0.0000 dB
255 : +7.9375 dB